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https://github.com/reactos/reactos.git
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165 lines
5.3 KiB
C
165 lines
5.3 KiB
C
/* ---------------- search.c ------------- */
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#include "dflat.h"
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extern DF_DBOX SearchTextDB;
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extern DF_DBOX ReplaceTextDB;
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static int CheckCase = TRUE;
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static int Replacing = FALSE;
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/* - case-insensitive, white-space-normalized char compare - */
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static BOOL SearchCmp(int a, int b)
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{
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if (b == '\n')
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b = ' ';
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if (CheckCase)
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return a != b;
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return tolower(a) != tolower(b);
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}
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/* ----- replace a matching block of text ----- */
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static void replacetext(DFWINDOW wnd, char *cp1, DF_DBOX *db)
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{
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char *cr = DfGetEditBoxText(db, DF_ID_REPLACEWITH);
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char *cp = DfGetEditBoxText(db, DF_ID_SEARCHFOR);
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int oldlen = strlen(cp); /* length of text being replaced */
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int newlen = strlen(cr); /* length of replacing text */
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int dif;
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if (oldlen < newlen) {
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/* ---- new text expands text size ---- */
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dif = newlen-oldlen;
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if (wnd->textlen < strlen(wnd->text)+dif) {
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/* ---- need to reallocate the text buffer ---- */
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int offset = (int)((int)cp1-(int)wnd->text);
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wnd->textlen += dif;
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wnd->text = DfRealloc(wnd->text, wnd->textlen+2);
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cp1 = wnd->text + offset;
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}
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memmove(cp1+dif, cp1, strlen(cp1)+1);
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}
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else if (oldlen > newlen) {
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/* ---- new text collapses text size ---- */
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dif = oldlen-newlen;
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memmove(cp1, cp1+dif, strlen(cp1)+1);
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}
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strncpy(cp1, cr, newlen);
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}
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/* ------- search for the occurrance of a string ------- */
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static void SearchTextBox(DFWINDOW wnd, int incr)
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{
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char *s1 , *s2, *cp1;
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s1 = s2 = cp1 = NULL;
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DF_DBOX *db = Replacing ? &ReplaceTextDB : &SearchTextDB;
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char *cp = DfGetEditBoxText(db, DF_ID_SEARCHFOR);
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BOOL rpl = TRUE, FoundOne = FALSE;
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while (rpl == TRUE && cp != NULL && *cp) {
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rpl = Replacing ?
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DfCheckBoxSetting(&ReplaceTextDB, DF_ID_REPLACEALL) :
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FALSE;
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if (DfTextBlockMarked(wnd)) {
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DfClearTextBlock(wnd);
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DfSendMessage(wnd, DFM_PAINT, 0, 0);
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}
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/* search for a match starting at DfCursor position */
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cp1 = DfCurrChar;
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if (incr)
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cp1++; /* start past the last hit */
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/* --- compare at each character position --- */
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while (*cp1) {
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s1 = cp;
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s2 = cp1;
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while (*s1 && *s1 != '\n') {
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if (SearchCmp(*s1, *s2))
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break;
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s1++, s2++;
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}
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if (*s1 == '\0' || *s1 == '\n')
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break;
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cp1++;
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}
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if (s1 != NULL && (*s1 == 0 || *s1 == '\n')) {
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/* ----- match at *cp1 ------- */
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FoundOne = TRUE;
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/* mark a block at beginning of matching text */
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wnd->BlkEndLine = DfTextLineNumber(wnd, s2);
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wnd->BlkBegLine = DfTextLineNumber(wnd, cp1);
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if (wnd->BlkEndLine < wnd->BlkBegLine)
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wnd->BlkEndLine = wnd->BlkBegLine;
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wnd->BlkEndCol =
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(int)((int)s2 - (int)DfTextLine(wnd, wnd->BlkEndLine));
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wnd->BlkBegCol =
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(int)((int)cp1 - (int)DfTextLine(wnd, wnd->BlkBegLine));
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/* position the DfCursor at the matching text */
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wnd->CurrCol = wnd->BlkBegCol;
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wnd->CurrLine = wnd->BlkBegLine;
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wnd->WndRow = wnd->CurrLine - wnd->wtop;
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/* align the window scroll to matching text */
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if (DfWndCol > DfClientWidth(wnd)-1)
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wnd->wleft = wnd->CurrCol;
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if (wnd->WndRow > DfClientHeight(wnd)-1) {
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wnd->wtop = wnd->CurrLine;
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wnd->WndRow = 0;
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}
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DfSendMessage(wnd, DFM_PAINT, 0, 0);
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DfSendMessage(wnd, DFM_KEYBOARD_CURSOR,
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DfWndCol, wnd->WndRow);
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if (Replacing) {
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if (rpl || DfYesNoBox("Replace the text?")) {
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replacetext(wnd, cp1, db);
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wnd->TextChanged = TRUE;
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DfBuildTextPointers(wnd);
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}
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if (rpl) {
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incr = TRUE;
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continue;
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}
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DfClearTextBlock(wnd);
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DfSendMessage(wnd, DFM_PAINT, 0, 0);
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}
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return;
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}
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break;
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}
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if (!FoundOne)
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DfMessageBox("Search/Replace Text", "No match found");
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}
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/* ------- search for the occurrance of a string,
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replace it with a specified string ------- */
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void DfReplaceText(DFWINDOW wnd)
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{
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Replacing = TRUE;
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if (CheckCase)
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DfSetCheckBox(&ReplaceTextDB, DF_ID_MATCHCASE);
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if (DfDialogBox(NULL, &ReplaceTextDB, TRUE, NULL)) {
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CheckCase=DfCheckBoxSetting(&ReplaceTextDB,DF_ID_MATCHCASE);
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SearchTextBox(wnd, FALSE);
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}
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}
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/* ------- search for the first occurrance of a string ------ */
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void DfSearchText(DFWINDOW wnd)
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{
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Replacing = FALSE;
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if (CheckCase)
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DfSetCheckBox(&SearchTextDB, DF_ID_MATCHCASE);
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if (DfDialogBox(NULL, &SearchTextDB, TRUE, NULL)) {
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CheckCase=DfCheckBoxSetting(&SearchTextDB,DF_ID_MATCHCASE);
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SearchTextBox(wnd, FALSE);
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}
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}
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/* ------- search for the next occurrance of a string ------- */
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void DfSearchNext(DFWINDOW wnd)
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{
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SearchTextBox(wnd, TRUE);
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}
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/* EOF */
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